Traditionally Used to Support Restful Sleep and Relaxation. For centuries valerian (valeriana officinalis) has been employed by herbalists worldwide to support restful sleep and relaxation. A popular way to enhance the flavor aroma and soothing effects of valerian is to blend it with organic peppermint leaves (mentha x piperita). . Alvita Valerian-Peppermint Tea is made with premium-quality valerian root and peppermint leaves producing the characteristic aroma valerian is known for but finishing with the cooling minty flavor of peppermint.